氦是钍和铀元素数千年放射性衰变的副产品。

Helium is the by product of millennia of radioactive decay from the elements thorium and uranium.

youdao

元素数据以及所需属性的基数性。

Cardinality adherence for element data as well as for required attributes.

youdao

能够形成元组的元素数量目前仅限于10个。

The number of elements that can form a tuple is currently limited to 10.

youdao

b OK. In this example I'd use b. All right, as b get-- b is the thing that's changing as I go along here, but it could be things like, how many elements are there in a list if the input is a list, could be how many digits are there in a string if the input's a string, it could be the size of the integer as we go along. All right.?

好，在这个例子里我会用，因为b是一直在变的东西,但是也可能是如下情况：,如果输入是数组的话,变化的就是数组的元素数，如果输入是字符串的话,变化的就是字符串的长度，如果是integer的话,可能就是这个数的大小，对不对？

麻省理工公开课 - 计算机科学及编程导论课程节选